CN108791909B - Unmanned aerial vehicle engine installation mechanism - Google Patents
Unmanned aerial vehicle engine installation mechanism Download PDFInfo
- Publication number
- CN108791909B CN108791909B CN201810776017.4A CN201810776017A CN108791909B CN 108791909 B CN108791909 B CN 108791909B CN 201810776017 A CN201810776017 A CN 201810776017A CN 108791909 B CN108791909 B CN 108791909B
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- engine
- fixing plate
- unmanned aerial
- aerial vehicle
- connecting assembly
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- 230000007246 mechanism Effects 0.000 title claims abstract description 25
- 238000009434 installation Methods 0.000 title description 18
- 230000035939 shock Effects 0.000 claims description 12
- 230000002035 prolonged effect Effects 0.000 abstract description 2
- 230000005540 biological transmission Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 230000001133 acceleration Effects 0.000 description 3
- 238000005452 bending Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 230000006378 damage Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
- B64D27/00—Arrangement or mounting of power plants in aircraft; Aircraft characterised by the type or position of power plants
- B64D27/40—Arrangements for mounting power plants in aircraft
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T50/00—Aeronautics or air transport
- Y02T50/40—Weight reduction
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- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Automobile Manufacture Line, Endless Track Vehicle, Trailer (AREA)
- Vibration Prevention Devices (AREA)
Abstract
The invention discloses an unmanned aerial vehicle engine mounting mechanism which comprises an upper connecting assembly and a lower connecting assembly, wherein the upper connecting assembly comprises an engine upper fixing plate and a lifting foot group, the engine upper fixing plate is fixedly arranged on an upper mounting surface of an engine, the lower end of the lifting foot group is connected with the engine upper fixing plate, and the upper end of the lifting foot group is connected with a frame of an unmanned aerial vehicle; the hanging foot group consists of four hanging feet, the four hanging feet are distributed in a quadrilateral manner, and two adjacent hanging feet form an splayed structure; the lower connecting assembly comprises an engine lower fixing plate, and the engine lower fixing plate is fixedly arranged on a lower mounting surface of the engine. The unmanned aerial vehicle engine mounting mechanism is simple and feasible to mount, reliable in positioning and convenient to use; the plane stress is replaced by the tension of the space through the upper mounting assembly, so that the engine and related structural members are protected from being damaged by large impact, and the service life is prolonged.
Description
Technical Field
The invention relates to the technical field of unmanned aerial vehicles, in particular to an engine mounting mechanism of an unmanned aerial vehicle.
Background
The existing unmanned aerial vehicle aircraft field adopts a horizontal installation mode for the engine, the horizontal installation mode is mainly applied to a gearbox transmission engine, but the horizontal installation mode is not applicable to a belt transmission engine, because the engine has a certain height, the output end of the engine has a larger interval from the installation position of the engine, and when the engine bears load in the operation process of the engine, the engine is subjected to larger bending moment deformation; the large bending moment deformation of the engine not only increases the jitter of the engine, but also reduces the service life of the engine, and the installation method of the engine with only the bottom installation mechanism is the least scientific mechanism, which is indistinct and gradually eliminates.
In contrast, some engines are provided with an engine reversing mechanism at the top, as shown in fig. 3, the reversing mechanism made by the side surface of the top for preventing belt transmission tension force has a belt reversing traction force, so that hidden danger caused by a cantilever is overcome to a certain extent, but a series of problems are brought to the mechanism, such as difficulty in adjusting the level and the verticality of the engine, a certain repeated constraint problem is brought to the horizontal direction of a main shaft of the engine in the use process, the main shaft belt wheel is subjected to vibration during acceleration of the engine, thereby being influenced by bending moment, influencing the use precision for a long time, and even greatly reducing the service life.
The above prior art engine mounting method cannot solve the problems caused by the inconsistent level and verticality of the engine at the same time for a belt driven engine.
Disclosure of Invention
The invention aims to: the invention aims to overcome the defects of the prior art and provides an installation mechanism for installing the top and the bottom of an unmanned aerial vehicle engine on two sides.
The technical scheme is as follows: the invention discloses an unmanned aerial vehicle engine mounting mechanism, which comprises an upper connecting component and a lower connecting component, wherein the upper connecting component comprises an engine upper fixing plate and a lifting foot group, the engine upper fixing plate is fixedly arranged on an upper mounting surface of an engine and forms an integrated structure with the engine, the lower end of the lifting foot group is connected with the engine upper fixing plate, and the upper end of the lifting foot group is connected with a frame of an unmanned aerial vehicle; the hanging foot group consists of four hanging feet, the four hanging feet are distributed in a quadrilateral manner, and two adjacent hanging feet form an splayed structure;
the lower connecting assembly comprises an engine lower fixing plate, the engine lower fixing plate is fixedly arranged on a lower mounting surface of the engine and forms an integrated structure with the engine, and the engine lower fixing plate is fixedly arranged in a corresponding mounting hole in the frame.
The further preferable technical scheme of the invention is that the area of a rectangle surrounded by the connection points of the four hanging feet and the upper fixing plate of the engine is larger than the area of a rectangle surrounded by the connection points of the four hanging feet and the frame.
Preferably, the upper fixing plate of the engine is provided with a through hole along a diagonal line, a cylindrical head bolt is inserted into the through hole, and the upper fixing plate of the engine and the upper mounting surface of the engine are locked and fixed through the cylindrical head bolt.
Preferably, the bottom of the hanging foot is fixed by a cylindrical head bolt and a locking nut at corresponding positions, and is stably connected with the upper fixing plate of the engine.
Preferably, a hanging foot shock pad is further arranged between the hanging foot and the cylindrical head bolt.
Preferably, the lower fixing plate of the engine is provided with a plurality of through holes, each through hole is internally provided with a rubber shock pad, and a stud at one end of the rubber shock pad is inserted into the lower mounting surface of the engine and is locked by a locking nut; the stud at the other end is inserted into the corresponding mounting hole on the frame and locked by a locking nut.
When the mounting mechanism is used for mounting an engine, the horizontal mounting of the bottom is the first datum for mounting the engine, the lower fixing plate of the engine is integrated with the engine, transmission inclination caused by sudden acceleration is avoided when the engine works, and the engine is connected with the frame component through the part of the lower fixing plate of the engine, so that impact force caused by uneven stress of a rubber shock pad of the engine can be effectively prevented, and the jump of a belt wheel is increased due to the fact that a cantilever of a main shaft belt wheel is too long. The engine and the engine lower fixing plate are combined and placed in the unmanned aerial vehicle main body frame, after the rubber shock pad of the engine is corrected, the engine and the engine lower fixing plate are locked and fixed by the locking nut, so that basic transmission can be ensured.
In order to better exert the transmission advantage of the engine, the mechanism is additionally provided with a top mounting mechanism. The positioning reference formed by the mounting plate and the hanging foot group on the engine is utilized, so that the assembly precision can be well ensured, and the top part is mounted after the reference at the bottom is aligned, thereby overcoming the stress influence caused by longer cantilever and preventing the axial movement of the main shaft belt pulley.
The first standard in the invention is the horizontal installation of the bottom, the top hanging installation is carried out on the basis of the bottom installation, the reliable positioning is ensured by utilizing a special tool through a set position, and the reasonable locking scheme is realized. Meanwhile, when the bottom part is locally damaged after long-term use, the top part is hung up to play a role in protecting the engine due to the existence of the top part hanging up installation, and the top part is hung up to play an auxiliary role when the engine works normally; and the top hanging installation can repair the output shaft of the engine around the circumference center of the main shaft belt wheel when the engine is accelerated and decelerated.
The advantages of the scheme can be understood by the same principle, when the engine works, the engine can be subjected to 4-direction acting forces, the top of the engine is provided with two mounting points, the other two directions of acting forces can cause unbalance, and particularly when the engine works under complex working conditions, the other two directions of acting forces can cause the acceleration and the damage of the engine body, so that the installation of the engine is more critical. The structure can lead the splayed lifting angle to play the role of a horizontal plane and a vertical plane, decompose the plane complex force into space force, ensure the service life of structural members, reliably play the role of an engine, and more importantly effectively reduce the vibration of the whole machine.
The beneficial effects are that: (1) The unmanned aerial vehicle engine mounting mechanism is simple and feasible to mount, reliable in positioning and convenient to use; through last installation component, replace planar atress with the pulling force in space, thereby not only protected engine and relevant structure not receive the destruction of big impact and prolonged life, and this kind of top hangs formula installation space overall arrangement and also reduced resonance to a certain extent, also portable when going out the operation, all assembly positions all have reliable location benchmark when needs change, have got rid of the bearing assembly slope, the influence that the axle head face beats and bring, make assembly modularization, standardization.
(2) The engine mounting mechanism of the unmanned aerial vehicle belongs to bottom and top hanging type double-sided mounting, so that the safety of the engine is effectively improved, the standardization degree is improved by utilizing the assembly advantages of modularized components, the disassembly and the transportation are convenient, the maintenance is also convenient, and the assembly work efficiency is also improved.
Drawings
FIG. 1 is a schematic view of a mounting mechanism of the present invention;
FIG. 2 is an assembly view of a transfer engine utilizing the mounting mechanism of the present invention;
FIG. 3 is a schematic view of a prior art mounting mechanism;
in the figure, a 1-engine, a 2-engine main belt pulley, a 3-hanging foot, a 4-engine upper fixing plate, a 5-engine lower fixing plate and a 6-frame.
Detailed Description
The technical scheme of the invention is described in detail below through the drawings, but the protection scope of the invention is not limited to the embodiments.
Examples: an unmanned aerial vehicle engine mounting mechanism comprises an upper connecting component and a lower connecting component.
The upper connecting component comprises an upper engine fixing plate 4 and a hanging foot group, a through hole is formed in the upper engine fixing plate 4 along a diagonal line, a cylindrical head bolt is inserted in the through hole, and the upper engine fixing plate 4 and an upper mounting surface of the engine 1 are locked and fixed through the cylindrical head bolt to form an integrated structure.
The hanging foot group consists of four hanging feet 3, the lower end of the hanging feet 3 is fixed through cylindrical head bolts and locking nuts at corresponding positions, stable connection is formed between the hanging feet 3 and a fixing plate 4 on an engine, a hanging foot shock pad is further arranged between the hanging feet 3 and the cylindrical head bolts, and the upper end of the hanging feet 3 is connected with a frame 6 of the unmanned aerial vehicle. Four hang foot 3 quadrangle distribution, and two adjacent hang foot 3 form "eight" font structure, and four hang foot 3 and the area that the tie point of fixed plate 4 encloses into rectangle on the engine is greater than four hang foot 3 and the area that the tie point of frame 6 encloses into the rectangle.
The lower connecting component comprises an engine lower fixing plate 5, a plurality of through holes are formed in the engine lower fixing plate 5, rubber shock pads are inserted into the through holes, and one end stud of each rubber shock pad is inserted into the lower mounting surface of the engine 1 and locked by a locking nut, so that the engine lower fixing plate 5 and the engine 1 form an integrated structure; the stud at the other end is inserted into a corresponding mounting hole on the frame 6 and locked by a locking nut.
The specific installation method comprises the following steps: firstly, horizontally placing an engine 1, inserting a cylindrical head bolt into an engine upper fixing plate 4, and diagonally locking by using a tool wrench to fasten an upper mounting surface of the engine 1 and the engine upper fixing plate 4;
then, a stud at one end of an engine rubber shock pad is inserted into the lower mounting surface of the engine 1, and is locked by a small locking nut; the other end stud of the engine rubber shock pad is inserted into the engine lower fixing plate 5, the lower mounting surface of the engine 1 and the engine lower fixing plate 5 are connected together after the relative positions are adjusted to form a part, and the part is placed into a corresponding mounting hole of the frame 6 and is fixedly locked by an M6 locking nut.
Finally, after the main belt pulley 2 of the engine is connected with the engine 1, each hanging leg 3 and the upper fixing plate 4 of the engine are locked and fixed through a cylindrical head bolt and an M6 locking nut; the engine hanging foot 3 is locked after positioning and aligning, and the upper surface and the lower surface of the engine are respectively assembled in place.
As described above, although the present invention has been shown and described with reference to certain preferred embodiments, it is not to be construed as limiting the invention itself. Various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (4)
1. The unmanned aerial vehicle engine mounting mechanism is characterized by comprising an upper connecting assembly and a lower connecting assembly, wherein the upper connecting assembly comprises an engine upper fixing plate and a lifting foot group, the engine upper fixing plate is fixedly arranged on an upper mounting surface of an engine and forms an integrated structure with the engine, the lower end of the lifting foot group is connected with the engine upper fixing plate, and the upper end of the lifting foot group is connected with a frame of an unmanned aerial vehicle; the hanging foot group consists of four hanging feet, the four hanging feet are distributed in a quadrilateral manner, and two adjacent hanging feet form an splayed structure;
the lower connecting assembly comprises an engine lower fixing plate, the engine lower fixing plate is fixedly arranged on a lower mounting surface of the engine and forms an integrated structure with the engine, and the engine lower fixing plate is fixedly arranged in a corresponding mounting hole on the frame;
the area of a rectangle surrounded by the connection points of the four hanging feet and the upper fixing plate of the engine is larger than the area of a rectangle surrounded by the connection points of the four hanging feet and the frame;
the engine upper fixing plate is provided with a through hole along a diagonal line, a cylindrical head bolt is inserted into the through hole, and the engine upper fixing plate and an upper mounting surface of the engine are locked and fixed through the cylindrical head bolt.
2. The unmanned aerial vehicle engine mounting mechanism of claim 1, wherein the bottom of the boom foot is secured by a cylindrical stud and a lock nut in a corresponding position, forming a stable connection with the engine upper securing plate.
3. The unmanned aerial vehicle engine mounting mechanism of claim 2, wherein a boom pad is further provided between the boom and the cylindrical head bolt.
4. The unmanned aerial vehicle engine mounting mechanism of claim 1, wherein the engine lower fixing plate is provided with a plurality of through holes, each through hole is internally provided with a rubber shock pad, and one end stud of the rubber shock pad is inserted into the lower mounting surface of the engine and locked by a locking nut; the stud at the other end is inserted into the corresponding mounting hole on the frame and locked by a locking nut.
Priority Applications (1)
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CN201810776017.4A CN108791909B (en) | 2018-07-16 | 2018-07-16 | Unmanned aerial vehicle engine installation mechanism |
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CN201810776017.4A CN108791909B (en) | 2018-07-16 | 2018-07-16 | Unmanned aerial vehicle engine installation mechanism |
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CN108791909A CN108791909A (en) | 2018-11-13 |
CN108791909B true CN108791909B (en) | 2023-09-22 |
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CN205554613U (en) * | 2016-04-29 | 2016-09-07 | 山东长空雁航空科技有限责任公司 | Shock attenuation coupling mechanism of engine and fuselage |
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CN206012320U (en) * | 2016-07-16 | 2017-03-15 | 安徽奥丰汽车配件有限公司 | A kind of mounting structure of car engine suspension |
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CN207328847U (en) * | 2017-08-25 | 2018-05-08 | 山东蜂巢航空科技有限公司 | A kind of oil electricity mixing UAV system |
CN208470117U (en) * | 2018-07-16 | 2019-02-05 | 飞瑞航空科技(江苏)有限公司 | A kind of unmanned vehicle engine installing mechanism |
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FR2915176B1 (en) * | 2007-04-20 | 2009-07-10 | Airbus France Sa | ENGINE ATTACHING MACHINE FOR AN AIRCRAFT HAVING A REAR ENGINE ATTACHMENT HAVING A BARREL NUT |
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Patent Citations (9)
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CN101687551A (en) * | 2007-07-09 | 2010-03-31 | 空中客车运作股份公司 | Aircraft engine attachment pylon with a four-point articulated spreader beam |
CN204980820U (en) * | 2015-09-30 | 2016-01-20 | 安徽江淮汽车股份有限公司 | Engine hoisting structure and engine mounting rear leg |
CN205200899U (en) * | 2015-11-18 | 2016-05-04 | 飞瑞航空科技(江苏)有限公司 | Welding jig of high accuracy unmanned aerial vehicle support |
CN205554613U (en) * | 2016-04-29 | 2016-09-07 | 山东长空雁航空科技有限责任公司 | Shock attenuation coupling mechanism of engine and fuselage |
CN206012320U (en) * | 2016-07-16 | 2017-03-15 | 安徽奥丰汽车配件有限公司 | A kind of mounting structure of car engine suspension |
CN106184800A (en) * | 2016-07-29 | 2016-12-07 | 安庆米锐智能科技有限公司 | A kind of unmanned plane is from surely stopping intelligent platform |
CN106741916A (en) * | 2017-02-14 | 2017-05-31 | 深圳市航宇航空科技有限公司 | A kind of culvert type unmanned vehicle vector Power Component |
CN207328847U (en) * | 2017-08-25 | 2018-05-08 | 山东蜂巢航空科技有限公司 | A kind of oil electricity mixing UAV system |
CN208470117U (en) * | 2018-07-16 | 2019-02-05 | 飞瑞航空科技(江苏)有限公司 | A kind of unmanned vehicle engine installing mechanism |
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CN108791909A (en) | 2018-11-13 |
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